Valve



Jan. 25,1927. 1

D. G. LORRAINE VALVE Filed May 26, 19

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Application mm m as, 1924. sum Io. 71am.

movement opening a relatively small orifice through the valve in order that the pressure at the respective sides thereof maybe balanced an thus permit continued opening .15 movement of the valve with minimum effort.

It is a further object of the invention'to provide a valve structure as described, in which both initial and final opening movement is accomplished by sliding motion at 20 right angles to the directlon of pressure against said valve, so that there will be less resistance to said opening movement than in a construction wherein the movable member of the valve opens directly against the :5 pressure on the same.

It is a still further object of the invention to provide an extremely simplified and conpact arrangement adapted to be readily assembled or taken a art for replacement of to parts, repairs, and t e like.

It is a still further object of the invention to provide a valve particularly adapted for use .in connection with an oil and as separator, said valve controlling the oil 's- :5 charge from said separator and having an o crating connection with a float suspended erein so that the oil discharge is re lated in proportion to the level of the liquid withrelation to the se arator, the arrangement of provldes for movement thereof with minimum efl'ort, permittin of sensitive response to movement of the cat.

Fig. 1 is a vertical section through a usual gas and oil separator, showing the improved 5 valve used in connection with the oil discharge therefrom.

Flg. 2 1s a detail section of the valve mechanism on the line 22 of Fig. 1.

a valve particularly 3-3 of-Fig. 2.

Fig. 3 is a transverse section on the line 50 Fi 4 is a front view' of the intermediate mova 1e closure disc.

Fig. 5 is a similar view of the fixed closure disc. The oil and gas separator upon which the 65 11nproved valve is used, comprises a tank 1 having vertical partition 2 formin an inlet passageway in rear of said partltion and open at itsrespective ends to the lower and upper portions of the tank which form a so settling chamber and a as chamber.

Flow-inlet 3 communlcates with the tank in rear of partition 2, and oil and as discharges 4 and 5 are open to said ta at the settling chamber and the gas chamber, re- 65 spectively. A float 6 is suspended in the tank in front of partition 2 by rocker arms 7, and links 8 connected to said rocker arms control valves 9 and 10 for the gas and oil dlscharges, respectively.

The valve 10 for the oil discharge oomprises a casing mounted on the outsideof the wall of tank 1, and commraicating at one end with the oil discharge The casing has a discharge opening at one side pro- 7 vided with" a lateral peripheral flange 11, and an opening 12 forms a bearin for the valve rod at the opposite side of said casin Closure means shown as a disc 13 1s mounted against the lateral flange 11 of the B0 discharge opening and a reduction nozzle '14: adapted to have a suitable discharge pipe connected thereto, is provided with a flan ed end received against disc 13, the parts being held in place by bolts 15 extending through 86 said flanges and disc. I

Disc 13 as clearly shown in Fig. 5, is provided with a central bearing 16, and radial slots 17 circumferentially spaced and forming relatively large ports,'said slots termi- 90 nating at their inner ends in restricted circumferential extensions 18.

The operating rod 19 for the valve is journaled at one end in bearing 16, the end of said bearing opening being closed by a. ll plug 20, and said operating rod; extends across the valve casing and through bearing opening 12, with a suitable stufiing' box 21 on the projecting end of said rod.

An arm 22 carrying a counter-weight 23 is mounted on the outer end of rod 19, and an operating arm 24 is fixed upon a squared medial portion of said rod inslde the valve casing, and extends into tank 1 through the oil discharge openin 4. The operating arm is pivoted to one of t e links 8, so that movement of float 6 responsive to variations in the oil level in the separator, will oscillate valve rod 19.

A slidable member adapted for movement at right angles to the direction of the flow against the closure means of the valve, cooperates with closure disc 13 and is shown as a disc 25 having a central bearing 26 for journalin the same on rod 19 agamst the inner sur ace of disc 13.

Disc 25 as clearly shown in Fig. 4, is provided with relatively lar e circumferentiall spaced radial ports 27, a apted to aline with e outer ends of ports 17 or be turned completely out of alinement with said oscillation of disc 25.

The movement of disc 25 to position for full alinement of ports l727 so as to open the valve, or complete closing of the valve by alinement of ports 27 with the portions of disc 13 between the circumferentially spaced ports 17 formed therein, is limited by a stud 28 mounted on the inside of the valve casin and projecting between circumferentia ly spaced lugs 29 on the surface of disc 25 at the periphery thereof, one or the other of said lugs being adapted to ports, by

- abut against stud 28 when disc 25 is turned medial as to aline with the restricted extensions 18 indisc 17, irrespective of the position to which disc 25 is turned with relation to disc 13, the circumferential enlargement of said extensions maintaining said alinement of the restricted openings at one end or the other of said extensions, even when disc 25 is turned to its'respective limits of move ment for full opening or closing of the ports through the valve.

A second member adapted for sliding movement at right angles to the direction of pressure against the closure means of the valve, cooperates with ,discs 13 and 25, and is shown as a disc 31 fixed on the squared portion, of valve rod 19 against disc 25, a coil spring 32 mounted on said valve rod and impingmg against disc 31 yieldably maintaining discs 13, 25, and 31 in anal abutment while permitting relative rotation of the same.

Disc 31 as shown in Fig. 3, is of a diameter terminating short of ports 17 and 27 so as not to obstruct the same and provide a v the respective sides thereo relatively small area exposed to the pressure in the valve casing, and said disc has restricted orifices 33 adapted for alinement or non-alinement with restricted orifices 30, upon turning of disc 31 relative to disc 25.

A lug 34 projects radially from disc 31 between circumferentially spaced lugs '35 on disc 25, the arrangement of the parts ermitting initial turning of disc 31 for a mement or non-alinement of orifices 3033 without abutment of lug 34 against either of the lugs 35. Continued turning of disc 31 after alinement of orifices 30-33 will turn disc 25 by contact of lug 34: with one or the other of lugs 35, in order to move the disc to its respective limits of movement for opening or closing ports 17-27.

In operation the float 6moving responsive to variations in the oil level in the, separator, will rock operating arm 24 and thereby turn valve rod 19 in opposite directions.-

Turning movement of rod 19 in one directhe valve in this position being completely closed.

Initial turning of rod 19 in the opposite direction will rotate disc 31 without movement of disc 25, for alinement of restricted orifices 30-33, and orifices 30 being always open to the restricted extensions 18, a relatively small passage through the valve is thus opened for balancing the pressure at The disc 31 exposing but a relatively small area to the pressure in the valve casing, and moving in a direction at right angles thereto, permits of said initial turning movement with a minimum efi'ort, and after the pressure against disc 31 has been thus relieved, turning movement thereof may be readily continued for subsequent partial or full alinement of ports 17-27, to .variably open the valve.

It will be apparent that various changes may be made in the construction, combination, and arrangement of parts as thus described, without departing from the spirit of the invention. I

I claim: i A valve comprising a casing, a closure for the casing having a discharge opening with a small portion of said openin transversely elongated, a movable member aving a port adapted for alinement or non-alinement discharge opening irrespective of alinement or non-alinement of the port and'discharge opening, a second movable member having an orifice adapted for alinement or nonalinement with the orifice of the first movable member meansfor initially moving the second mova le member to aline the orifices without movement of the first movable member and a lost motion connection between tbe movable members whereby con tinued movement of the second movable member will also move the first movable member to 'aline its port and the discharge opening and maintain the orifices in alinement.

In testimon whereof I have aflixed signature to t is specificatiom,

mvm G. LORRAINE. 

